Wild APIs

Utilities APIs

Small, single-purpose services that save writing the code yourself. QR Codes & Barcodes and Charts render images from a URL, with QuickChart and Kroki among the chart options; Screenshots captures web pages through hosted browsers; and URL Shortener handles branded links and click analytics. Other groups cover file conversion, randomness beacons, color palettes, logos and favicons, math evaluation and time zones.
67 listings of 69 in catalogue
APIPricingAuthFormatFree tierStatus
Abstract Website Screenshot APIRenders any URL or raw HTML as a PNG, JPEG or GIF screenshot, with viewport and delay options.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayDegraded
ApiFlashRenders any URL as a Chrome-based screenshot image, with full-page, mobile and ad-block options.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayLive
BitlyShortens URLs, generates QR codes, and reports click analytics on branded links.
Utilities › URL Shortener
FreemiumAPI keyJSON<100/dayLive
Bly.toShortens URLs with custom domains, QR codes, and click/scan analytics via a credit-based REST API.
Utilities › URL Shortener
FreemiumAPI keyJSON—Untested
BoredSuggests a random activity (with type, participants, cost, duration) to fight boredom.
Utilities › Randomness
FreeNoneJSON1k–10k/dayLive
Brandfetch Logo APICompany logos, symbols and icons by domain, stock ticker, ISIN or crypto symbol, with dark/light variants.
Utilities › Logos & Favicons
FreemiumAPI keyBinary10k+/dayLive
BrowshotRenders real-time screenshots of any URL across 30+ browsers and devices, pay-as-you-go pricing.
Utilities › Screenshots
FreemiumAPI keyJSON<100/dayUntested
CodeCogs Equation EditorRenders LaTeX equations as PNG, SVG, GIF, EMF, or PDF images from a plain URL.
Utilities › File Conversion
FreemiumNoneBinary1k–10k/dayLive
Color Name APINearest human-readable names for hex colours from 30,000+ names across several lists, plus search by name.
Utilities › Colors
FreeNoneJSONUnlimitedLive
ColorMagicSearches a library of AI-generated color palettes by tag or keyword, returns hex codes.
Utilities › Colors
FreeNoneJSONUnlimitedLive
ColormindGenerates color palettes from photo-trained models, or completes a palette from colors you supply.
Utilities › Colors
FreeNoneJSONUnlimitedLive
Cutt.lyShortens URLs with custom aliases, expiration rules, and click analytics via a key-based API.
Utilities › URL Shortener
FreemiumAPI keyJSON—Live
Diagrams.soTurns natural-language prompts into editable cloud-architecture diagrams (draw.io XML/SVG).
Utilities › Charts
FreemiumAPI keyJSON—Live
DigiDatesSmall date/time utility API: unix timestamps, leap years, age, countdowns, German public holidays.
Utilities › File Conversion
FreeNoneJSONUnlimitedLive
drand (League of Entropy)Verifiable random values from a distributed threshold beacon, published every few seconds by round.
Utilities › Randomness
FreeNoneJSONUnlimitedLive
Fair DrawRuns publicly verifiable random draws (giveaway winners) anchored to the drand beacon.
Utilities › Randomness
FreeNoneJSONUnlimitedLive
FluentEDIDeterministic utility tools for agents: X12 EDI parsing, time math, JSON repair, DNS/WHOIS lookups.
Utilities › File Conversion
FreeNoneJSONUnlimitedLive
FramejetRenders any URL as a PNG/JPEG screenshot, with cookie banners and chat widgets stripped.
Utilities › Screenshots
FreemiumAPI keyBinary—Live
Icon HorseReturns the best-available favicon image for any website domain, with a fallback icon.
Utilities › Logos & Favicons
FreemiumNoneBinary<100/dayLive
Image-ChartsRenders pie, bar, line and QR-code charts as PNG images from a single GET URL.
Utilities › Charts
FreemiumNoneBinaryUnlimitedLive
JSON 2 JSONPWraps any JSON URL in a JSONP callback for legacy cross-domain requests, no key needed.
Utilities › File Conversion
FreeNoneJSONUnlimitedLive
KrokiRenders 30+ text-based diagram formats (PlantUML, Mermaid, GraphViz, BPMN...) as SVG or PNG, no key.
Utilities › Charts
FreeNoneBinaryUnlimitedLive
Lix.liShortens URLs, generates QR codes, and reports click analytics by geography and device.
Utilities › URL Shortener
FreemiumAPI keyJSON<100/dayLive
LogoKitFetches company logos and brand images by domain, brand name, or stock ticker.
Utilities › Logos & Favicons
FreemiumAPI keyBinary1k–10k/dayLive
math.js web serviceEvaluates maths expressions, unit conversions, matrices and complex numbers from a URL-encoded string.
Utilities › Math
FreeNoneJSON10k+/dayLive
mermaid.inkRenders Mermaid flowcharts, sequence and Gantt diagrams from a URL to SVG, PNG/JPEG/WebP or PDF.
Utilities › Charts
FreeNoneBinaryUnlimitedLive
MicrolinkTurns any URL into structured metadata, a screenshot, or a PDF using a real browser.
Utilities › Screenshots
FreemiumAPI keyJSON<100/dayLive
MotomarksAutomotive manufacturer logos (full, badge, wordmark) and brand metadata via CDN and JSON API.
Utilities › Logos & Favicons
FreemiumAPI keyJSON1k–10k/dayLive
NerdulatorDeterministically identifies and converts any input (numbers, dates, colours, UUIDs, cron expressions).
Utilities › File Conversion
FreeNoneJSON10k+/dayLive
NewtonComputes math expressions: simplify, factor, derive, integrate, zeroes, trig functions.
Utilities › Math
FreeNoneJSONUnlimitedLive
NIST Randomness BeaconSigned public random values published every 60 seconds, fetchable by time or pulse index for verifiable draws.
Utilities › Randomness
FreeNoneJSONUnlimitedLive
OpenQRCreate and manage editable dynamic and static QR codes with scan analytics via a REST API.
Utilities › QR Codes & Barcodes
Free trialAPI keyJSON—Live
OpenQRGenerate QR codes and manage editable, trackable dynamic codes with scan analytics.
Utilities › QR Codes & Barcodes
FreemiumAPI keyJSONUnlimitedLive
Orca Scan Barcode Image APIGenerates barcode and QR code images (SVG, PNG, JPG, PDF and more) from a plain GET URL, no key needed.
Utilities › QR Codes & Barcodes
FreeNoneBinary10k+/dayLive
PageBoltCapture screenshots, PDFs and OG images, and run browser automation, audits and visual diffs on any URL.
Utilities › Screenshots
FreemiumAPI keyJSON<100/dayUntested
PHP-NoiseGenerates random or parameterized noise-pattern background images as PNG or base64 JSON.
Utilities › Randomness
FreeNoneBinaryUnlimitedLive
QR codeGenerates a QR code PNG or SVG image for a given URL via a simple image-style GET request.
Utilities › QR Codes & Barcodes
FreeNoneBinary10k+/dayLive
QR codeGenerates QR code PNG/SVG/EPS images from text and can also decode QR codes from an image URL.
Utilities › QR Codes & Barcodes
FreeNoneBinaryUnlimitedUntested
QR Code CrafterGenerates static QR codes (SVG, PNG, JPG, WebP, PDF, EPS) for URLs, Wi-Fi, payments and more, no key needed.
Utilities › QR Codes & Barcodes
FreeNoneBinary—Live
QRCode MonkeyGenerates custom QR codes with logos, colors and shapes as PNG, SVG, PDF or EPS.
Utilities › QR Codes & Barcodes
FreeNoneBinaryUnlimitedLive
QuickChartRenders Chart.js configs, QR codes and other visualizations as static images from a URL.
Utilities › Charts
FreemiumNoneBinary—Live
RANDOM.ORGTrue random integers, strings and UUIDs from atmospheric noise, with optional signed results for draws.
Utilities › Randomness
FreemiumAPI keyJSON1k–10k/dayLive
RebrandlyCreates and manages branded short links on a custom domain, with click tracking and QR codes.
Utilities › URL Shortener
FreemiumAPI keyJSON<100/dayLive
RedirHubProgrammatic redirect and branded-link management: create, update and monitor via REST API.
Utilities › URL Shortener
FreemiumAPI keyJSON—Live
RenderwolfRenders screenshots, PDFs, QR codes and short video clips from URLs or HTML via API.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayLive
Screenshot ScoutRenders screenshots of any URL as PNG, JPEG, WebP or PDF with one HTTP request.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayLive
ScreenshotAPICaptures URL or raw HTML as PNG, JPEG, WebP or PDF, with full-page and dark-mode options.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayLive
ScreenshotAPI.netRenders website screenshots and PDFs (PNG, JPG, WebP, PDF, video) via a managed Chromium service.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayLive
ScreenshotbaseCaptures full-page or viewport screenshots of any URL as PNG, JPG, GIF or WebP.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayLive
ScreenshotlayerRenders a PNG, JPEG, GIF or WebP screenshot of any URL, with viewport, delay and full-page options.
Utilities › Screenshots
FreemiumAPI keyBinary100–1k/dayLive
ScreenshotOneRenders screenshots or PDFs of URLs/HTML with ad blocking, full-page capture, and webhooks.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayLive
ScrnifyRenders screenshots or short video captures of any URL, with full-page, CSS-selector and caching options.
Utilities › Screenshots
FreemiumAPI keyBinary—Live
Serialif ColorConverts a hex/RGB/HSL color to its complementary, grayscale and best-contrast text colors.
Utilities › Colors
NoneJSONUnlimitedLive
Shields.ioGenerates static or dynamic SVG/PNG status badges (build, version, downloads) for READMEs and sites.
Utilities › Logos & Favicons
FreeNoneBinaryUnlimitedLive
ShotanvilRenders a URL or raw HTML to a PNG screenshot, with ad and cookie-banner blocking on by default.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayLive
ShotOGGenerates og:image social-preview PNG/SVG cards from a title using 8 templates, edge-rendered.
Utilities › Screenshots
FreemiumAPI keyBinary<100/dayLive
SQLableConverts CSV data to JSON Lines (JSONL) with automatic number detection, via a single POST endpoint.
Utilities › File Conversion
FreeNoneJSONUnlimitedUntested
Tallytopia73 deterministic calculators (finance, health, math, space, sports) as JSON, with step-by-step working.
Utilities › Math
FreeNoneJSON10k+/dayLive
The Color APIConverts colors between hex, RGB, HSL, HSV and CMYK, names them, and builds color schemes.
Utilities › Colors
FreeNoneJSONUnlimitedLive
TimeAPI.ioCurrent time and UTC offset by IANA zone, coordinates or IP, plus time-zone info and Unix timestamps.
Utilities › Time & Time Zones
FreeNoneJSONUnlimitedLive
TimeZoneDBLocal time, UTC offset and DST for 400+ zones by zone name, coordinates, city or IP, plus zone conversion.
Utilities › Time & Time Zones
FreemiumAPI keyJSON10k+/dayLive
TinyURL APICreates and manages branded short links with click analytics via a token-based REST API.
Utilities › URL Shortener
FreemiumAPI keyJSON—Untested
UrlBaeCreates branded short links, dynamic QR codes and bio pages with click analytics and A/B rotation.
Utilities › URL Shortener
FreemiumAPI keyJSON<100/dayLive
Utilorax200+ calculator, converter, hashing, text and file endpoints (BMI, unit conversion, hashes, PDFs).
Utilities › File Conversion
FreemiumAPI keyJSON<100/dayLive
Word Cloud APIGenerates a word-cloud image (base64) from submitted text, with size, color, and stop-word options.
Utilities › Charts
API keyJSON—Untested
World Time & WeatherCurrent local time, timezone/DST info, and weather for 400 cities as static JSON, updated every 30 min.
Utilities › Time & Time Zones
FreeNoneJSONUnlimitedLive
YAMLineConverts YAML documents to equivalent JSON via a single POST endpoint, no key required.
Utilities › File Conversion
FreeNoneJSONUnlimitedUntested

Choosing an Utilities API

Is there a free Utilities API?

Yes. TimeAPI.io, Bored, Color Name API, ColorMagic, Colormind and 23 others are free to use, and QuickChart, Bitly, Abstract Website Screenshot API, ApiFlash, Bly.to and 31 others have a free tier alongside paid plans.

Which Utilities APIs work without an API key?

QuickChart, TimeAPI.io, Bored, CodeCogs Equation Editor, Color Name API and 28 others need no key or sign-up, so you can try them with a plain request.

Can I call an Utilities API from front-end JavaScript?

QuickChart, CodeCogs Equation Editor, Color Name API, Colormind, DigiDates and 19 others allow cross-origin requests and need no key, so they work straight from the browser. For the others, call them from your server so your key stays private.

Can I use Utilities APIs in a commercial project?

QuickChart, Abstract Website Screenshot API, ApiFlash, Bly.to, Brandfetch Logo API and 17 others permit commercial use. CodeCogs Equation Editor, Colormind, Screenshotlayer, TimeZoneDB, UrlBae and 1 other restrict it, for example to non-commercial or attributed use, so read the terms first.

Which Utilities APIs work with AI agents?

FluentEDI, LogoKit, OpenQR, Renderwolf and Shotanvil have both an MCP server and an OpenAPI spec. Bitly, Framejet, Motomarks, Screenshot Scout and ShotOG have an MCP server, so an AI agent can call them directly. QuickChart, TimeAPI.io, Abstract Website Screenshot API, Browshot, Image-Charts and 6 others publish an OpenAPI spec for generating clients and tools.

Browse by subcategory: QR Codes & Barcodes APIs · Screenshots APIs · File Conversion APIs · URL Shortener APIs · Randomness APIs · Charts APIs · Logos & Favicons APIs · Colors APIs · Math APIs · Time & Time Zones APIs

Popular topics: HTML to Image APIs